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<head><meta charset="utf-8"><title>I-prioritize #75707 unexpected panic when trait not impleme… · t-compiler/wg-prioritization/alerts · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/index.html">t-compiler/wg-prioritization/alerts</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize.20.2375707.20unexpected.20panic.20when.20trait.20not.20impleme.E2.80.A6.html">I-prioritize #75707 unexpected panic when trait not impleme…</a></h3>

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<a name="207416457"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize%20%2375707%20unexpected%20panic%20when%20trait%20not%20impleme%E2%80%A6/near/207416457" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> triagebot <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize.20.2375707.20unexpected.20panic.20when.20trait.20not.20impleme.E2.80.A6.html#207416457">(Aug 19 2020 at 14:41)</a>:</h4>
<p><span class="user-group-mention" data-user-group-id="3111">@WG-prioritization/alerts</span> issue <a href="https://github.com/rust-lang/rust/issues/75707">#75707</a> has been requested for prioritization.</p>
<h1><a href="https://forge.rust-lang.org/compiler/prioritization/procedure.html#assign-priority-to-unprioritized-issues-with-i-prioritize-label">Procedure</a></h1>
<ul>
<li>Priority?</li>
<li>Regression?</li>
<li>Notify people/groups?</li>
<li>Needs <code>I-nominated</code>?</li>
</ul>



<a name="207418118"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize%20%2375707%20unexpected%20panic%20when%20trait%20not%20impleme%E2%80%A6/near/207418118" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize.20.2375707.20unexpected.20panic.20when.20trait.20not.20impleme.E2.80.A6.html#207418118">(Aug 19 2020 at 14:54)</a>:</h4>
<p>was trying this one on godbolt and it doesn't fail</p>



<a name="207418143"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize%20%2375707%20unexpected%20panic%20when%20trait%20not%20impleme%E2%80%A6/near/207418143" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize.20.2375707.20unexpected.20panic.20when.20trait.20not.20impleme.E2.80.A6.html#207418143">(Aug 19 2020 at 14:54)</a>:</h4>
<p>so seems like an apple-darwin specific failure</p>



<a name="207420005"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize%20%2375707%20unexpected%20panic%20when%20trait%20not%20impleme%E2%80%A6/near/207420005" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize.20.2375707.20unexpected.20panic.20when.20trait.20not.20impleme.E2.80.A6.html#207420005">(Aug 19 2020 at 15:09)</a>:</h4>
<p>now this is the last one :)</p>



<a name="207420269"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize%20%2375707%20unexpected%20panic%20when%20trait%20not%20impleme%E2%80%A6/near/207420269" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Yuki Okushi <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize.20.2375707.20unexpected.20panic.20when.20trait.20not.20impleme.E2.80.A6.html#207420269">(Aug 19 2020 at 15:10)</a>:</h4>
<p>lzutao pointed out that it isn't darwin-specific <a href="https://github.com/rust-lang/rust/issues/75707#issuecomment-676478338">https://github.com/rust-lang/rust/issues/75707#issuecomment-676478338</a></p>



<a name="207420610"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize%20%2375707%20unexpected%20panic%20when%20trait%20not%20impleme%E2%80%A6/near/207420610" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize.20.2375707.20unexpected.20panic.20when.20trait.20not.20impleme.E2.80.A6.html#207420610">(Aug 19 2020 at 15:13)</a>:</h4>
<p>I was wondering if this is a regression</p>



<a name="207420620"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize%20%2375707%20unexpected%20panic%20when%20trait%20not%20impleme%E2%80%A6/near/207420620" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Yuki Okushi <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize.20.2375707.20unexpected.20panic.20when.20trait.20not.20impleme.E2.80.A6.html#207420620">(Aug 19 2020 at 15:13)</a>:</h4>
<p>at least we can reproduce it with 1.31.1 so it isn't recent regression, I'm not sure if it's easy to hit</p>



<a name="207420638"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize%20%2375707%20unexpected%20panic%20when%20trait%20not%20impleme%E2%80%A6/near/207420638" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Yuki Okushi <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize.20.2375707.20unexpected.20panic.20when.20trait.20not.20impleme.E2.80.A6.html#207420638">(Aug 19 2020 at 15:13)</a>:</h4>
<p>P-medium?</p>



<a name="207420668"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize%20%2375707%20unexpected%20panic%20when%20trait%20not%20impleme%E2%80%A6/near/207420668" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize.20.2375707.20unexpected.20panic.20when.20trait.20not.20impleme.E2.80.A6.html#207420668">(Aug 19 2020 at 15:14)</a>:</h4>
<p>right, yeah, I was going waaay back and it still fails</p>



<a name="207420715"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize%20%2375707%20unexpected%20panic%20when%20trait%20not%20impleme%E2%80%A6/near/207420715" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize.20.2375707.20unexpected.20panic.20when.20trait.20not.20impleme.E2.80.A6.html#207420715">(Aug 19 2020 at 15:14)</a>:</h4>
<p><span aria-label="+1" class="emoji emoji-1f44d" role="img" title="+1">:+1:</span> P-medium</p>



<a name="207420794"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize%20%2375707%20unexpected%20panic%20when%20trait%20not%20impleme%E2%80%A6/near/207420794" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> triagebot <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize.20.2375707.20unexpected.20panic.20when.20trait.20not.20impleme.E2.80.A6.html#207420794">(Aug 19 2020 at 15:14)</a>:</h4>
<p>Issue <a href="https://github.com/rust-lang/rust/issues/75707">#75707</a>'s prioritization request has been removed.</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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